Finding the Fourth Proportional to 891,105.56, 1,336,124.52 and 283,631.48

Step by Step Solution

1. Step 1: Write the proportion equation
   891,105.56 : 1,336,124.52 = 283,631.48 : x
2. Step 2: Convert to fraction form
   891,105.56/1,336,124.52 = 283,631.48/x
3. Step 3: Cross multiply
   891,105.56x = 1,336,124.52 × 283,631.48
4. Step 4: Simplify right side
   891,105.56x = 378,966,975,071.89
5. Step 5: Solve for x
   x = 378,966,975,071.89/891,105.56
6. Step 6: Final answer
   x = 425,277.31